Hourly Weather Forecast - O'Fallon, MO

12 AM
33°F
0%
8mph
WNW
Partly Cloudy
Humidity
65%
Feels like
26°F
Dew Point
22°F
1 AM
32°F
0%
8mph
WNW
Partly Cloudy
Humidity
67%
Feels like
25°F
Dew Point
22°F
2 AM
31°F
0%
8mph
WNW
Partly Cloudy
Humidity
69%
Feels like
23°F
Dew Point
22°F
3 AM
29°F
0%
8mph
NW
Partly Cloudy
Humidity
71%
Feels like
21°F
Dew Point
21°F
4 AM
27°F
0%
7mph
NW
Mostly Clear
Humidity
70%
Feels like
20°F
Dew Point
19°F
5 AM
26°F
0%
7mph
NW
Mostly Clear
Humidity
67%
Feels like
18°F
Dew Point
16°F
6 AM
24°F
0%
7mph
NW
Clear
Humidity
64%
Feels like
16°F
Dew Point
14°F
7 AM
24°F
0%
7mph
NW
Clear
Humidity
70%
Feels like
16°F
Dew Point
16°F
7:16 AM
8 AM
25°F
0%
6mph
NW
Sunny
Humidity
66%
Feels like
18°F
Dew Point
16°F
9 AM
28°F
0%
6mph
NW
Mostly Sunny
Humidity
58%
Feels like
20°F
Dew Point
15°F
10 AM
30°F
0%
6mph
NW
Mostly Sunny
Humidity
50%
Feels like
23°F
Dew Point
14°F
11 AM
32°F
0%
6mph
WNW
Mostly Sunny
Humidity
45%
Feels like
26°F
Dew Point
13°F
12 PM
34°F
0%
6mph
WNW
Mostly Sunny
Humidity
40%
Feels like
28°F
Dew Point
12°F
1 PM
35°F
0%
6mph
WNW
Mostly Sunny
Humidity
38%
Feels like
30°F
Dew Point
12°F
2 PM
36°F
0%
6mph
WNW
Sunny
Humidity
37%
Feels like
32°F
Dew Point
12°F
3 PM
37°F
0%
5mph
WNW
Sunny
Humidity
37%
Feels like
32°F
Dew Point
13°F
4 PM
36°F
0%
4mph
W
Sunny
Humidity
40%
Feels like
32°F
Dew Point
14°F
5 PM
35°F
0%
3mph
W
Sunny
Humidity
42%
Feels like
35°F
Dew Point
14°F
5:12 PM
6 PM
33°F
0%
2mph
WSW
Clear
Humidity
44%
Feels like
33°F
Dew Point
14°F
7 PM
32°F
0%
2mph
SW
Clear
Humidity
49%
Feels like
32°F
Dew Point
15°F
8 PM
30°F
0%
3mph
SW
Mostly Clear
Humidity
52%
Feels like
30°F
Dew Point
15°F
9 PM
29°F
0%
3mph
SW
Mostly Clear
Humidity
55%
Feels like
26°F
Dew Point
15°F
10 PM
29°F
0%
3mph
WSW
Mostly Clear
Humidity
54%
Feels like
26°F
Dew Point
15°F
11 PM
29°F
0%
4mph
W
Mostly Clear
Humidity
54%
Feels like
24°F
Dew Point
14°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Eastern U.S.

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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